Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Funktioniert wunderbar”
Google Play · 5/5 · 2025-01-26

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 3140475820

Proof data

Record hash (SHA-256): 8c806a3884822104830dd161c577050a6b704315723b5611ec20349afc689d7b
Signature (Ed25519, base64): TrL6jimySGH5LAd3DT4QNwZcfeODZ+52distcrBYrUCDgcCdjxKxfqg4jirU6zY3z7SwJYYrnryvd72NyDv3CQ==
Merkle root: 52d6be1abed15ebd0724a0e1a493d5805e1ea49ddcaf8e9e5584928cd3e4d759
Merkle path: ["8c771f39990a826162a6ba0dc3a4b6e9c7b014ef1e743b880ea6c378887ce891","b6b30b7dfaf298075a4a3fec094c3d80b9b5efe791873f09594402af2d007ac9","7b9b15a7e4bca391d24cf97d5d2c1e3809b0eac80b594491a012eb380dbf2109","2583dfbf233d60ce1d37b6d5dbf41acf5c9979670372c78acf13cb75afbbdc66","cf1fa06007c1a6d6f6f77e4ba647c88684be36325696fc92eeaf84f7028628a5","ecd19c644746eaf75b14428a70b9f2db290b2e86cfe6b784f0379f5f281fd2c4","cbd1a2f3788be149ff36903c08a693cd16866316ce452bc9ef68643e1dc41a70","543ee05902fcff5dc73ea470b373d719a545c5c7c60c5c46305ea6a126827cde","17a2321069c4c4db17312b725bee6bc41c631f4dcfbe1507db68dc32f805a025","5f22ec86eed48138e4450f3691b71eb93116ab0082bc442af388fbf1306b8b1f","c6b87a7c029c4ba87470b98626f84dfe65857df8d080b8d636e22ff7d8dd80c9","74700b83797e7cca97ab7cbbbea7021bafaa4e0a93d0b612dfda75605ecb0b98","b385fe89375278f2b45342434275d4a9ef2cb82ec9dfe399e3688817019e556e","64b3ccbf7465086dd7db73066d917eee6e4789a39addca1cf1c9d0e38a1ff084","b72fcc24171828b3fdfff6be65bb433d37b8e51a187739d27a216a784d84cf36"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140475820 · entry 108e9186e8c5677a78c2…
Expected log hash: bb68bef30792bf00f645df162a48943f770bc3f026216a44dedb4651c8ac0917 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1791431489246","kind":"published-quote","locale":"de","page":"brand:anton-paar","quote":"Funktioniert wunderbar","rating":5,"review_date":"2025-01-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (52d6be1abed1…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.